''''''

"""
运算符
    +(加)
    -(减)
    *(乘) 
    /(除) 
    //(整除)  
    %(取余)  
    **(乘方)

赋值运算符   赋值不能打印
    =  赋值
    +=  加等于
    -=
    *=
    /=
    //=
    %=
    **=


比较运算符  结果是bool类型
    ==  等于   
    !=  不等于
    >
    >=
    <
    <=


逻辑运算符
    and  与(并且)  用and连接必须同时为True，结果才为True
    or  或(或者)  用or连接，只要有一个True，结果就是True
    not   非(表否定)
"""
# a = 5
# b = 3
# print(a + b)  # 7
# print(a - b)  # 3
# print(a * b)  # 10
# print(a / b)  # 2.5
# print(a // b)  # 2
# print(a % b)  # 1
# print(a ** b)  # a*a  5的2次方


# a = 10
# # a += 10  # a = a+10
# # a -= 10  # a = a-10
#
# # a //= 2  # a = a // 2
# a %= 3   # a = a % 3
#
# print(a)


# a = 3
# b = 5
# print(a == b)   # a是否等于b
# print(a != b)   # a是不是不等于b


a = 10
b = 5
c = 15
# print(a > b and a != c)  # a > b True    a != c True
# print(b <= a or a == c)  # True
# print(a != b and c > b)
print(not (a >= b and a < c))

a = 10
print(not (a > 10))
